Double Beam UV-Vis Spectrophotometer US-B12

The US-B12 Double Beam UV-Vis Spectrophotometer is a compact tabletop unit featuring a double beam monochromator and automatic calibration alongside a silicon photocell sensor. It offers a fixed 2-trench sample holder complete with 4 quartz and 4 glass cuvettes, covering a wavelength range from 190 to 1100 nm via a C-T monochromator and 1200 L/mm holographic grating. Equipped with both a deuterium lamp and a tungsten lamp as light sources, this spectrophotometer ensures versatile functionality. Integrated with a blue LCD display and Windows-based PC control software, it facilitates easy operation and data transfer via a USB interface.

Wavelength Range190 to 1100 nm
Spectral Bandwidth1.8 nm
Optical SystemDouble beam, C-T monochromator,1200 L/mm holographic grating
Wavelength Accuracy±0.3 nm
Wavelength Repeatability0.2 nm
Wavelength Resolution0.1 nm
Wavelength CalibrationAutomatic calibration after starting up
Measuring Range0 to 200% T, -0.301 to 4.000 Abs, -9999 to 9999C, -9999 to 9999 F
Transmittance Accuracy±0.3% T
Transmittance Repeatability0.1% T
Light SourceTungsten lamp, Deuterium lamp
Stray Light≤0.05% T @ 220 nm, 360 nm
Light Switching Point294 nm to 365 nm (adjustable)
Display320×240 mm Blue LCD display
Baseline Flatness≤±0.001 Abs
Baseline Drift≤0.0005 Abs / half hour (after warm-up at 500 nm)
Sample Holderfixed 2 trench sample holder
Cuvette4 Quartz cuvette (10 mm optical path)

4 Glass cuvette (10 mm optical path)

SensorSilicon photocell
OutputDigital Signal
PC SoftwareYes
Power Supply220V ± 10% 50 Hz, 85 VA / 110 V ± 10% 60 Hz 85 VA
Dimensions (L×W×H)545 × 450 × 235 mm
Package Dimension (L×W×H)660 × 560 × 400 mm
Net Weight17 kg
Gross Weight26 kg

  • Double beam monochromator guarantees high linearity, minimizing stray light effectively
  • Silicon photocell sensors and automatic calibration function ensure precise and accurate results
  • Fixed 2-trench sample holder simplifies operation for users
  • Includes 4 quartz and 4 glass cuvettes with a 10 mm optical path, facilitating easy sample handling
  • Covers a wavelength range from 190 to 1100 nm using a C-T monochromator and 1200 L/mm holographic grating
  • Utilizes deuterium lamp and tungsten lamp as light sources, ensuring high-resolution measurements
  • Equipped with an LCD display, Windows-based PC control software, and USB interface for convenient data transfer

The Double Beam UV-Vis Spectrophotometer finds extensive use in various fields for photometric measurement, spectrum scanning, quantitative determination, dynamic measurements, 3D map measurements, multi-wavelength testing, and DNA/Protein concentration measurements. Its applications span across factories, schools, metallurgy, agriculture, food industry, biochemistry, scientific research institutes, and more.


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